Cells, EMF, terminal voltage & internal resistance | Electric current | Physics | Khan Academy
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- Опубликовано: 20 янв 2021
- EMF is the work done by the cell in moving a coulomb of charge across its terminals. It represents the energy transferred per coulomb to the charges. Some of this energy is lost as heat due to internal energy. Hence the net energy gained by the charge = the emf - heat lost. This net energy gained per coulomb is called the terminal voltage. This is the voltage across the ends of the battery.
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Created by Mahesh Shenoy
Out of thousand of videos watched about this topic, you are the only one who knows how to explain this topic. Thank you!
Yes I am with you and please see this lecture by physics wallah he also explain this very well
@@samiddhajana8625 exactly..
Same here
@@samiddhajana8625 hii,
Can you tell me a place or video where i can understand why the electron moves inside the battery from +ve to -ve terminal.
As on pw also there Respected Alakh Sir, quote HC Verma's word Battery Mechanism and himself said not going into detail. I wanna go in depth...
Alright... This was all.
Thanks.
@@dear2664 class 12 eletro chemistry.
This is how Physics should be taught!!
I was confused between them for a long time...but thank god I found your video..
thank you very much Khan Academy!
ஷர்
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Same
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My textbook did an atrocious job at explaining this, but you have made it super clear! Thank you so much. 🌸🌸
same Pingu ... textbooks are 👎
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True I truly have no idea what will they understand watching for 1 hr or so
Pw lectures are extremely long and boring..
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14:07 a whole lot!
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ruclips.net/video/wKF7NuIOqxg/видео.html
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Thank u man.
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Teachers like you give us clear understanding of physics.
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Love u r explanations man,and highly appreciating for the efforts you put to make us understand.
EPIC EXPLANATION, SIMPLY EPIC. Thanks a lot, Sir!
Mahesh sir and Khan Academy have had an incredible impact on my education and my life. Mahesh sir taught me with clarity and passion, while Khan Academy was my go-to resource for everything. As I move forward, I will carry their inspiration and lessons with me always. I am forever grateful to them. 🌟
Cleared all my doubts. Thank you!
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Love your explanation 😍😍
Many videos on this topic but it only this one where i understood. Thank you sir! Best Physics teacher with incredible content 🤩
The only video where I actually understood the topic ...
Thank you 😊
10:57 you say the terminal voltage drops
I say the mic drops
Respect 💯
💯
Incredible explanation! Simple and very effective.
I was finding a great problem with emf and terminal voltage but now it's crystal clear
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I actually feeled what might be happening in the battery through this vedio
And that was amazing 👍👍
You should deserve a million like for this effort :)
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Finally I've watched a perfect explaination on this topic it's so confusing for me but I'm glad now my doubts are almost clear 🙂thanks
Such an underrated video this video give us clear understanding of voltage EMF but sir if please make a video on how is potential difference created inside a cell
It is beyond of my expectations, great video.
Thanks man this was a great explanation and I just loved the way this concept was explained.
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I like the fact that he gives more importance in your explaining the concept not the derivation.
I'm speech less ,you're the one my best tutor in my way thanks for your process and thoughts to do this great job without any bubble reputation
Was just studying this!!
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OMG! so clear! Thank you so much!!
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Thank you for the amazing video... it made my concept more clear..
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No words for your wisdom 😀
brilliant as always
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It's just not clear, it's crystal clear
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Reallly awesome explanation.
very efficiently explained!!
tysm for making this video, really cleared my doubts
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I finally understand this concept thank you
The only video that helped me understand this topic after watching many
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Literally watched 5 videos of this topic and this the only one that made me understand the concept till depth.
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Crystal clear✨
To the point
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mind blowing explanation...
Let me say that it was a MIND BLOWING video… just as always ;)
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finally after visting many places i found logic + understanding , feed up of dervations